"April 1977 - Solar Energy Project - Physics Professor, Donald Schnitzler (left) and pre-dentistry student, Douglas Whittet (right) check calibrations on the pyranometer, stationed on the science building roof."
"April 1977 - Solar Energy Project - Willie Rotich (left) and Doug Krieger (right) run a test on the pyranometer. The instrument is sensitive enough to detect the light reflected off them." In the background, Mt. Emily is visible.